John Lightfoot on Luke 3:13

[Exact no more than that which is appointed you.] When the Rabbins saw that the publicans exacted too much, they rejected them, as not being fit to give their testimony in any case. Where the Gloss hath it, too much, that is more than that which is appointed them. And the father of R. Zeirah is commended in the same place, that he gently and honestly executed that trust: "He discharged the office of a publican for thirteen years: when the prince of the city came, and this publican saw the Rabbins, he was wont to say to them, Go, my people, enter thou into thy chambers, Isaiah 26:20." The Gloss is, "Lest the prince of the city should see you; and, taking notice what numbers you are, should increase his tax yearly."